Copy file to webserver

[junaidahmed]

How to copy file from device to webserver using http library.pls advise

 

[Erel]

You can open the file with File.Open and pass the input stream to HttpRequest.InitializePost.

This will write the file to the request stream.

 

[junaidahmed]

i dont't have example source code,pls give me example source code

 

[Erel]

The following code writes the file to the POST stream:

Sub Process_Globals
    Dim HttpClient1 As HttpClient
    Dim InputStream1 As InputStream
End Sub

Sub Activity_Create(FirstTime As Boolean)
    If FirstTime Then
        HttpClient1.Initialize("HttpClient1")
    End If
    Dim req As HttpRequest
    Dim size As Long
    size = File.Size(File.DirRootExternal, "somefile")
    InputStream1 = File.OpenInput(File.DirRootExternal, "somefile")
    req.InitializePost("http://....", InputStream1, size)
    HttpClient1.Execute(req, 1)
End Sub

Sub HttpClient1_ResponseSuccess (Response As HttpResponse, TaskId As Int)
    InputStream1.Close
End Sub

I'm less familiar with the PHP code that reads the stream. I think that it should be pretty simple as described here: Reading raw POST data in PHP

 

[junaidahmed]

Thanks for your quick replay

 

[bluedude]

PHP code

I tested below PHP code and it works (not all servers allow file_get_contents)

<?php

$postdata = file_get_contents("php://input");
//$filename=$_POST['file'];
$file = fopen("test.png","wb");
fwrite($file, $postdata);
fclose($file);

?>

A challenge is now to also pass the filename in a variable. Cannot get that to work.

 

[Erel]

Maybe you can send the file name as a GET parameter (in the URL).

 

[bluedude]

Using get

Works, perfect!

Thought it wouldn't work because of the InitializePost, anyway

 

[Erel]

Yes, a POST request can include GET parameters.

 

[junaidahmed]

As per your example code,i try to copy file from device simulator to webserver,but it is not copy file.pls advise where it is problem,my code is given below

Basic4Android Code:-

Dim req As HttpRequest
Dim size As Long
size = File.Size(File.DirRootExternal & "external_sd/Data/", "ExpNote.S3db")
InputStream1 = File.OpenInput(File.DirRootExternal & "/external_sd/Data/", "ExpNote.S3db")
req.InitializePost("http://www.kharind.com/experiment/File.php", InputStream1, size)
HttpClient1.Execute(req, 1)


PHP Code:- (File.php)

<?php

$postdata = file_get_contents("php://input");
//$filename=$_POST['file'];
$file = fopen("ExpNote.S3db","wb");
fwrite($file, $postdata);
fclose($file);

?>

pls give me a best example code,so that i can copy file to webserver by progrmatically.

 

[Erel]

Do you get any errors? Does your script get anything?

 

[junaidahmed]

When i run the script from simulator it doesn't response anything,same script when i run from browser it shows an following error

Warning: fopen(ExpNote.S3db) [function.fopen]: failed to open stream: Permission denied in /home/khardin/public_html/experiment/file.php on line 5

Warning: fwrite() expects parameter 1 to be resource, boolean given in /home/khardin/public_html/experiment/file.php on line 6

Warning: fclose() expects parameter 1 to be resource, boolean given in /home/khardin/public_html/experiment/file.php on line 7

Please rectify my script because of i am new for PHP and Basic4Android

 

[Erel]

It will not help calling the script from the browser. It expects a file as part of the request.

You should add the ResponseSuccess and ResponseError events and see if there are any errors.